From 9cfcac45283e12188de915bd6be3522f13b690d3 Mon Sep 17 00:00:00 2001
From: Matt Turner <mattst88@gmail.com>
Date: Thu, 6 Dec 2012 14:51:29 -0800
Subject: [PATCH] glformats: add _mesa_es3_error_check_format_and_type

This function checks for ES3 compatible
format/type/internalFormat/dimension combinations.

[jordan.l.justen@intel.com: additional tweaks for gles3-gtf]
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
---
 src/mesa/main/glformats.c | 439 ++++++++++++++++++++++++++++++++++++++++++++++
 src/mesa/main/glformats.h |   5 +
 2 files changed, 444 insertions(+)

diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
index ff56ffa..678ba95 100644
--- a/src/mesa/main/glformats.c
+++ b/src/mesa/main/glformats.c
@@ -1670,3 +1670,442 @@ _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
 
    return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION;
 }
+
+
+/**
+ * Do error checking of format/type combinations for OpenGL ES 3
+ * glTex[Sub]Image.
+ * \return error code, or GL_NO_ERROR.
+ */
+GLenum
+_mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
+                                      GLenum internalFormat,
+                                      unsigned dimensions)
+{
+   GLboolean type_valid = GL_TRUE;
+
+   switch (format) {
+   case GL_RGBA:
+      switch (type) {
+      case GL_UNSIGNED_BYTE:
+         switch (internalFormat) {
+         case GL_RGBA:
+         case GL_RGBA8:
+         case GL_RGB5_A1:
+         case GL_RGBA4:
+         case GL_SRGB8_ALPHA8_EXT:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      case GL_BYTE:
+         if (internalFormat != GL_RGBA8_SNORM)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_SHORT_4_4_4_4:
+         switch (internalFormat) {
+         case GL_RGBA:
+         case GL_RGBA4:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      case GL_UNSIGNED_SHORT_5_5_5_1:
+         switch (internalFormat) {
+         case GL_RGBA:
+         case GL_RGB5_A1:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      case GL_UNSIGNED_INT_2_10_10_10_REV:
+         switch (internalFormat) {
+         case GL_RGBA: /* GL_EXT_texture_type_2_10_10_10_REV */
+         case GL_RGB10_A2:
+         case GL_RGB5_A1:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      case GL_HALF_FLOAT:
+         if (internalFormat != GL_RGBA16F)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_FLOAT:
+         switch (internalFormat) {
+         case GL_RGBA16F:
+         case GL_RGBA32F:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_RGBA_INTEGER:
+      switch (type) {
+      case GL_UNSIGNED_BYTE:
+         if (internalFormat != GL_RGBA8UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_BYTE:
+         if (internalFormat != GL_RGBA8I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_SHORT:
+         if (internalFormat != GL_RGBA16UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_SHORT:
+         if (internalFormat != GL_RGBA16I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_INT:
+         if (internalFormat != GL_RGBA32UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_INT:
+         if (internalFormat != GL_RGBA32I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_INT_2_10_10_10_REV:
+         if (internalFormat != GL_RGB10_A2UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_RGB:
+      switch (type) {
+      case GL_UNSIGNED_BYTE:
+         switch (internalFormat) {
+         case GL_RGB:
+         case GL_RGB8:
+         case GL_RGB565:
+         case GL_SRGB8:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      case GL_BYTE:
+         if (internalFormat != GL_RGB8_SNORM)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_SHORT_5_6_5:
+         switch (internalFormat) {
+         case GL_RGB:
+         case GL_RGB565:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      case GL_UNSIGNED_INT_10F_11F_11F_REV:
+         if (internalFormat != GL_R11F_G11F_B10F)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_INT_5_9_9_9_REV:
+         if (internalFormat != GL_RGB9_E5)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_HALF_FLOAT:
+         switch (internalFormat) {
+         case GL_RGB16F:
+         case GL_R11F_G11F_B10F:
+         case GL_RGB9_E5:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      case GL_FLOAT:
+         switch (internalFormat) {
+         case GL_RGB16F:
+         case GL_RGB32F:
+         case GL_R11F_G11F_B10F:
+         case GL_RGB9_E5:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      case GL_UNSIGNED_INT_2_10_10_10_REV:
+         switch (internalFormat) {
+         case GL_RGB: /* GL_EXT_texture_type_2_10_10_10_REV */
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_RGB_INTEGER:
+      switch (type) {
+      case GL_UNSIGNED_BYTE:
+         if (internalFormat != GL_RGB8UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_BYTE:
+         if (internalFormat != GL_RGB8I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_SHORT:
+         if (internalFormat != GL_RGB16UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_SHORT:
+         if (internalFormat != GL_RGB16I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_INT:
+         if (internalFormat != GL_RGB32UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_INT:
+         if (internalFormat != GL_RGB32I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_RG:
+      switch (type) {
+      case GL_UNSIGNED_BYTE:
+         if (internalFormat != GL_RG8)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_BYTE:
+         if (internalFormat != GL_RG8_SNORM)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_HALF_FLOAT:
+         if (internalFormat != GL_RG16F)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_FLOAT:
+         switch (internalFormat) {
+         case GL_RG16F:
+         case GL_RG32F:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_RG_INTEGER:
+      switch (type) {
+      case GL_UNSIGNED_BYTE:
+         if (internalFormat != GL_RG8UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_BYTE:
+         if (internalFormat != GL_RG8I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_SHORT:
+         if (internalFormat != GL_RG16UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_SHORT:
+         if (internalFormat != GL_RG16I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_INT:
+         if (internalFormat != GL_RG32UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_INT:
+         if (internalFormat != GL_RG32I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_RED:
+      switch (type) {
+      case GL_UNSIGNED_BYTE:
+         if (internalFormat != GL_R8)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_BYTE:
+         if (internalFormat != GL_R8_SNORM)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_HALF_FLOAT:
+         if (internalFormat != GL_R16F)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_FLOAT:
+         switch (internalFormat) {
+         case GL_R16F:
+         case GL_R32F:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_RED_INTEGER:
+      switch (type) {
+      case GL_UNSIGNED_BYTE:
+         if (internalFormat != GL_R8UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_BYTE:
+         if (internalFormat != GL_R8I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_SHORT:
+         if (internalFormat != GL_R16UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_SHORT:
+         if (internalFormat != GL_R16I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_INT:
+         if (internalFormat != GL_R32UI)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_INT:
+         if (internalFormat != GL_R32I)
+            return GL_INVALID_OPERATION;
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_DEPTH_COMPONENT:
+      if (dimensions != 2) {
+         return GL_INVALID_OPERATION;
+      }
+      switch (type) {
+      case GL_UNSIGNED_SHORT:
+         if (internalFormat != GL_DEPTH_COMPONENT16)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_UNSIGNED_INT:
+         switch (internalFormat) {
+         case GL_DEPTH_COMPONENT16:
+         case GL_DEPTH_COMPONENT24:
+            break;
+         default:
+            return GL_INVALID_OPERATION;
+         }
+         break;
+
+      case GL_FLOAT:
+         if (internalFormat != GL_DEPTH_COMPONENT32F)
+            return GL_INVALID_OPERATION;
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_DEPTH_STENCIL:
+      if (dimensions != 2) {
+         return GL_INVALID_OPERATION;
+      }
+      switch (type) {
+      case GL_UNSIGNED_INT_24_8:
+         if (internalFormat != GL_DEPTH24_STENCIL8)
+            return GL_INVALID_OPERATION;
+         break;
+
+      case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+         if (internalFormat != GL_DEPTH32F_STENCIL8)
+            return GL_INVALID_OPERATION;
+         break;
+
+      default:
+         return GL_INVALID_OPERATION;
+      }
+      break;
+
+   case GL_ALPHA:
+   case GL_LUMINANCE:
+   case GL_LUMINANCE_ALPHA:
+      if (type != GL_UNSIGNED_BYTE || format != internalFormat)
+         return GL_INVALID_OPERATION;
+      break;
+   }
+
+   return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION;
+}
diff --git a/src/mesa/main/glformats.h b/src/mesa/main/glformats.h
index fe604dd..4cbc82f 100644
--- a/src/mesa/main/glformats.h
+++ b/src/mesa/main/glformats.h
@@ -120,6 +120,11 @@ extern GLenum
 _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
                                      unsigned dimensions);
 
+extern GLenum
+_mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
+                                      GLenum internalFormat,
+                                      unsigned dimensions);
+
 
 #ifdef __cplusplus
 }
-- 
2.7.4